It is a mystery why Juliette Black starts off looking so sad but PD does not put up with that kind of attitude. She needs to show that she can think of people other than herself. After all, he wants to enjoy her. He wants to make her feel pain and lust and the pleasure of service. She just needs to remain compliant and express how grateful she is for this opportunity. She fails to express herself properly a few time, but the punishments she receives are effective at correcting that kind of behavior. It is not long before she trades in those screams and tears for a bit of moaning and begging for more.